CN105317395B - A kind of rotary cement head - Google Patents
A kind of rotary cement head Download PDFInfo
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- CN105317395B CN105317395B CN201410319249.9A CN201410319249A CN105317395B CN 105317395 B CN105317395 B CN 105317395B CN 201410319249 A CN201410319249 A CN 201410319249A CN 105317395 B CN105317395 B CN 105317395B
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Abstract
The present invention relates to a kind of rotary cement heads.This rotary cement head includes: ontology, is provided with hollow chamber so that cement slurry is directed into well cementing casing pipe；Top cover is set to the top of the ontology, can be connected to elevator, so that rotary cement head drives drilling tool rotation；Union interface, it include with the first union interface of chamber in fluid communication and the second union interface, first union interface and the second union interface are set to the top of ontology, and the first closer top cover of union interface, first union interface can connect for slurry pipeline, and the second union interface can connect cementing pipeline；Spiral backing pin, is arranged on the body, and between the first union interface and the second union interface, rubber plug can be stranded in chamber by spiral backing pin, and when carrying out rubber plug for slurry, spiral backing pin discharges rubber plug downlink.This rotary cement header structure is simple, easy to operate.
Description
Technical field
The present invention relates to rotary tail cementing technology field, in particular to a kind of rotary cement head.
Background technique
Today that petroleum industry continues to develop, drilling technology are rapidly developed, and the quality of cementing quality directly influences
The Production Life and single well productivity of a well.And rotary tail cementing technology is increasingly becoming mainstream development trend, rotary cement head
Huge effect has been played in terms of well cementing operation.Particularly, in well cementing process, in order to reach preferable cementing quality, under
Enter tail pipe needs to rotate in tripping in, circulation of drilling fluid or well cementing process.Currently, domestic each elephant and company it is more be benefit
The rotation function in well cementing process is realized with this component of rotating short-knot.But there is no be arranged for accommodating glue for rotating short-knot
The chamber of plug, in order to realize that rubber plug needs for slurry by other components or increase other process.Therefore, it is badly in need of a kind of structure letter
Singly, convenient for the rotary cement head of operation.
Summary of the invention
For above-mentioned problem, the invention proposes a kind of rotary cement head, this rotary cement head can be replaced with rubber plug
Slurry.
According to the first aspect of the invention, proposing a kind of rotary cement head includes: ontology, is provided with hollow chamber
To direct fluid into well cementing casing pipe；Top cover is set to the top of ontology, can be connected to elevator, so that rotary cement
Head drive drilling tool rotation；Union interface comprising with the first union interface of chamber in fluid communication and the second union interface,
One union interface and the second union interface are set to the top of ontology, and the first union interface is closer to top cover, and described first
Union interface can connect for slurry pipeline, and the second union interface can connect cementing pipeline；Spiral backing pin, is set to
On ontology, and between the first union interface and the second union interface, rubber plug can be stranded in chamber by spiral backing pin,
When carrying out rubber plug for slurry, spiral backing pin discharges rubber plug downlink.
When carrying out rotary tail well cementation using rotary cement head of the invention, rubber plug is stranded in ontology chamber by spiral backing pin
The first union interface and the second union interface between, when carrying out rubber plug for slurry, spiral backing pin is screwed out, rubber plug downlink, thus real
Existing rubber plug is for slurry.So that rotary cement header structure is simple, realize rubber plug for slurry in the case where easy to operate.
In one embodiment, rotary cement head further includes the ball injector being set to below the second union interface, ball injector
Including propulsion tube and the pushing ram being set on the outside of the propulsion tube, it is provided in the propulsion tube and connects with the chamber fluid of ontology
Logical pitching hole, for the ball push-in chamber that from pitching hole pitching into propulsion tube, pushing ram is used to be contained in propulsion tube
In room.Thus when needing build the pressure operation to well cementing casing pipe pitching, operation ball injector is thrown by pitching hole to well cementing casing pipe
Ball, it is easy to operate.
In one embodiment, rotary cement head further includes rotation inner sleeve, and rotation inner sleeve is configured to tubulose, and in rotation
Set bearing is connected to the lower end of ontology.To which rotary cement head realizes the rotary operation of drilling tool.
In one embodiment, the lower end for rotating inner sleeve is connected with lower protection connector, to connect drilling tool.It ensures in rotation
The reliability connecting with drilling tool is covered, the reliability of rotary cement head work is improved.
In one embodiment, rotary cement head further includes the outer cylinder connecting with the lower end of ontology, and outer sleeve is loaded on rotation
Turn the outer surface of inner sleeve, and rotates inner sleeve bearing and be connected to outer cylinder.Thus the bonding strength of rotation inner sleeve and ontology is improved.
In one embodiment, rotate and be provided with rotatory sealing combination between inner sleeve and outer cylinder, with closing rotation inner sleeve and
Gap between outer cylinder.The rotatory sealing of rotation inner sleeve and outer cylinder is improved, the sealing performance of ontology chamber is enhanced, it is ensured that rotation water
Reliability under mud head continuous rotation working condition, and enhance the adaptive capacity to environment of rotary cement head.
In one embodiment, rotation inner sleeve is configured to substantially trapezoidal along the axis direction of ontology, and rotation inner sleeve includes cutting
The biggish top bar portion in face and the lesser stepped down part in section, the top bar portion for rotating inner sleeve are connected to ontology by first bearing
Lower end the lower end that inner sleeve bearing is connected to ontology will be rotated, rotate inner sleeve stepped down part pass through second bearing connect
Outer cylinder is connected in outer cylinder inner sleeve bearing will be rotated.Under the premise of ensuring to rotate inner sleeve verticity, there is drilling tool and tail
In the case that the weight of pipe is very heavy, the bearing energy of the bearing in top bar portion and the bearing of stepped down part, especially stepped down part
The impact force for enough bearing fractional load and load, avoids whole heavy duties from being pressurized on drilling floor surface.
In one embodiment, crook is provided on the inner wall of outer cylinder, second bearing is set in the crook.By
, when rotating the heavy duty of inner sleeve receiving and impact, crook and second bearing on outer cylinder are able to bear fractional load and punching for this
It hits, so that rotary drilling-head rotates under case of heavy load, and is able to bear certain impact.
According to the second aspect of the invention, it is also proposed that a kind of cementing method comprising following steps: step 1, glue being installed
Plug: opening top cover, spiral backing pin is screwed in the chamber of rotary cement head ontology, is put into rubber plug, and rubber plug is detained by rotation backing pin
In chamber, top cover is buckled, and top cover is connected to elevator；Step 2, connection operation pipeline: first will be connected to for slurry pipeline
Union interface, cementing pipeline are connected to the second union interface；Step 3, it cementing: is infused from the cementing pipeline into ontology
Enter cement；Step 4, rubber plug is for slurry: screwing out spiral backing pin, discharges rubber plug, injects mud from for slurry pipeline, rubber plug is pushed away mud
Dynamic lower downlink；Wherein, elevator makes rotary cement head drive drilling tool rotation in cementing step.To not influence cementing work
It can realize that rubber plug replaces slurry in the case where industry rapidly, it is easy to operate, conducive to the raising of cementing quality.
In one embodiment, step 1 further includes being put into ball in the propulsion tube of ball injector by pitching hole, when needing to throw
When ball builds the pressure, rotation pushing ram will be in the ball push-in chamber in propulsion tube.Pitching is achieved in build the pressure operation.
It should be noted that directional terminology "up" and "down" and "top" and "bottom" used in the present invention are rotary cements
Position under head normal operating conditions relative to well head, a lower height of position apart from well head are "lower" or "bottom", distance
The higher-height position of well head is "upper" or "top".
Compared with the prior art, the advantages of the present invention are as follows, rotary cement head of the invention has the chamber for accommodating rubber plug,
Rubber plug downlink can be discharged when carrying out rubber plug for slurry, so that rotary cement head is to meet structure simple, easily to operate
In the case of carry out rubber plug for slurry.In addition, rotary cement head includes ball injector, when need to build the pressure operation when operation ball injector thrown
Ball exercise is made, and the flow chart that builds the pressure thus is simplified.Further, rotary cement head is connected to drilling tool by rotating inner sleeve, in rotation
Set bearing be connected on ontology, it is preferable that rotation inner sleeve bearing be connected to be paperwrapped in rotation lining the outer surface of outer cylinder, outer cylinder with
Ontology connection, thus strengthen rotary cement head rotation reliability, in addition rotate inner sleeve include the biggish top bar portion in section and
The crook being arranged on the inner wall of the lesser stepped down part in section and outer cylinder, the bearing of especially stepped down part are able to bear
Thus fractional load and impact force reduce the load that is applied on drilling floor surface, improve rotary cement head work reliability and
Stability.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein:
Fig. 1 is the half sectional view of rotary cement head according to a preferred embodiment of the present invention, and pitching is shown
The half-section diagram of device.
Identical component is indicated by identical appended drawing reference in the figure.The attached drawing is not drawn according to the actual ratio.
Specific embodiment
Below in conjunction with attached drawing, the present invention will be further described.
As shown in Figure 1, rotary cement head proposed by the present invention includes top cover 10, ontology 20, union interface and spiral gear
Pin 220.Rotary cement head and its all parts of the invention will be described in detail belows.
As shown in Figure 1, ontology 20 is provided with hollow chamber 200, axis of the hollow chamber 200 as shown in the figure along ontology
Direction perforation, chamber 200 import mud and cement slurry by union interface, and the bottom end port of chamber 200 (such as is bored by drilling tool
Bar is not shown) connection well cementing casing pipe (not shown), thus, it is possible to the fluid such as cement slurry, mud is imported into well cementing casing pipe
To carry out well cementing operation.
As shown, the top that top cover 10 is set to ontology 20 may be coupled on elevator (not shown), well cementing operation is first
The step of wanting is installation rubber plug (not shown): opening top cover 10, spiral backing pin 220 is screwed inwardly into rotary cement head ontology 20
In chamber 200, it is put into rubber plug, rotation backing pin 220 stops rubber plug downlink, to which rubber plug to be trapped in chamber 200, buckles top
Lid 10, and top cover 10 is connected to elevator, it is thus able to drive ontology 20 when elevator rotates and rotates, thus the ontology of rotation
20 drive drilling tool and well cementing casing pipe rotation, to realize well cementation rotary operation.
The second step of well cementing operation is connection operation pipeline, as shown in Figure 1, union interface includes flowing with chamber 200
The the first union interface 210 and the second union interface 210 ' of body connection, the first union interface 210 and the second union interface 210 ' are set
It is placed in the top of ontology 20, and the closer top cover 10 of the first union interface 210.First union interface 210 and the second union connect
The purposes of 210 ' setting of mouth are connection operation pipelines, i.e. the first union interface 210 connection is for slurry pipeline, the second union interface 210 '
Cementing pipeline is connected, from there through turning on or off for the first union interface and the second union interface is adjusted, passes through the rotation
Turn cementing head and realizes different construction operations.
It should be noted that "outside" used in the present invention is for the chamber 200 of ontology, far from chamber
200 direction be it is outer, direction in contrast is "inner".
Spiral backing pin 220 is set on ontology 20, and be located at the first union interface 210 and the second union interface 210 ' it
Between, rubber plug (not shown) can be stranded in chamber by spiral backing pin 220, and rubber plug is made to be located at the first union interface 210 and second
Between union interface 210 ', concrete operations are as follows: the inside precession chamber 200 of spiral backing pin 220, the first union interface 210 are closed, the
Two union interfaces 210 ' are opened, and spiral backing pin 220 stops rubber plug to move down, and rubber plug is to be trapped in chamber 200.Well cementation is made
The third step of industry is cementing, and cement slurry can enter rotation water by the second union interface 210 ' with Automatic water-filling mud pipeline at this time
The lower part of mud head, and then enter in well cementing casing pipe.And when the four steps for carrying out well cementing operation, i.e., when rubber plug is for slurry, spiral gear
Pin 220 screws out chamber 200 outward, opens the first union interface 210, closes the second union interface 210 ', thus discharges rubber plug, glue
Downlink is filled in, mud pushes rubber plug to compress cement slurry downwards.By above as can be seen that can be easily real by rotary cement head
Existing different operation, and elevator can drive ontology 20 in rotation status, to be achieved in preferable always during these
Well cementation.
In an excellent embodiment, rotary cement head of the invention further includes ball injector, as shown, ball injector setting exists
The lower section of second union interface 210 ', ball injector include propulsion tube and the pushing ram that is set on the outside of propulsion tube, are set in propulsion tube
It is equipped with the pitching hole 230 being in fluid communication with the chamber 200 of ontology 20, for from the pitching hole 230 to 200 pitching of chamber.Also
To be in the first step for say well cementing operation, which can also include, is put into ball in the propulsion tube of ball injector by pitching hole 230, when needing
When pitching being wanted to build the pressure, pushing ram is rotated to be pushed into the ball in propulsion tube in the chamber 200 of ontology 20.When pitching, ball passes through throwing
Ball 230 enters in the propulsion tube of ball injector, and operator will be in propulsion tube by the precession bar on the outside of rotation propulsion tube
Ball is pushed into the chamber 200 of ontology 20, and ball is moved downwardly until the ball seat bumped against in well cementing casing pipe all the way in chamber 200,
To carry out the operation that builds the pressure.Ball injector is set to the lower section of the second union interface 210 ', in the other constructions for not influencing well cementing operation
In the case where operation, convenient for the operation of operator.
Preferably, as shown in Figure 1, rotary cement head further includes rotation inner sleeve 60, rotation inner sleeve 60 is used to be connected to drilling tool,
Such as drilling rod, the lower end of drilling rod connect well cementing casing pipe, rotation inner sleeve 60 is configured to tubulose, and effect is the chamber for being connected to ontology 20
200, the inner cavity of drilling tool and the inner cavity of well cementing casing pipe, as shown, rotation 60 bearing of inner sleeve is connected to the lower end of ontology 20.
The continuous rotation for being achieved in ontology 20 drives rotation inner sleeve 60 to rotate, and drilling rod and well cementing casing pipe constantly revolve in linkage
Turn.
Further, as shown in Figure 1, rotary cement head further includes outer cylinder 30, outer cylinder 30 is connect with the lower end of ontology 20,
Outer cylinder 30 can be connected to the lower end of ontology 20 using any measure, as shown in the figure using the lower end for being threaded io ontology 20
Portion.Outer cylinder 30 is configured to sleeve-shaped, and outer cylinder 30 as shown in the figure is sleeved on the outer surface of rotation inner sleeve 60, and rotates 60 axis of inner sleeve
It holds and is connected to outer cylinder 30, thus rotate inner sleeve 60 and outer cylinder 30 relatively rotates.
In addition, as shown in Figure 1, rotatory sealing combination 50 is provided between rotation inner sleeve 60 and outer cylinder 30, for being sealed rotation
Turn the gap between inner sleeve 60 and outer cylinder 30.So as to improve the air-tightness of ontology chamber 200, higher pressure can be born
Power.
In addition, as shown, rotation inner sleeve 60 is configured to substantially trapezoidal, the rotation packet of inner sleeve 60 along the axis direction of ontology 20
Include the lesser stepped down part 620 in the biggish top bar portion 610 in section and section.As shown, 610 bearing of top bar portion is connected to
The lower end of ontology 20 is achieved in the lower end that rotation inner sleeve 60 is connected to ontology 20 by first bearing 40, stepped down part
620, which are connected to outer cylinder 30 by second bearing 70, is connected to outer cylinder 30 will rotate 60 bearing of inner sleeve.Further, outer cylinder 30
Crook is provided on inner wall, second bearing 70 is set in the crook.Thus when rotation inner sleeve bears heavy duty and impact
When, crook and second bearing 70 on outer cylinder are able to bear fractional load and impact, so that rotary drilling-head is in heavy duty
In the case of rotate, and be able to bear certain impact.
As preferred embodiment, the lower end for rotating inner sleeve 60 is connected with lower protection connector 80, such as can use screw thread
Connection connects drilling tool, such as drilling rod by the lower protection connector 80, and the lower end of drilling rod connects well cementing casing pipe, thus by cement slurry
Or mud is sent into well cementing casing pipe and realizes well cementation.In addition as shown in Figure 1, rotation inner sleeve 60 and ontology 20 between, outer cylinder 30 with
Sealing ring is provided between ontology 20 and between rotation inner sleeve 60 and lower protection connector 80, it is ensured that rotary drilling-head rotary course
The air-tightness of middle ontology chamber 200.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.The invention is not limited to Wen Zhonggong
The specific embodiment opened, but include all technical solutions falling within the scope of the claims.
Claims (10)
1. a kind of rotary cement head characterized by comprising
Ontology is provided with hollow chamber to direct fluid into well cementing casing pipe；Axis of the hollow chamber along ontology
Direction perforation；
Top cover is set to the top of the ontology, can be connected to elevator, so that the rotary cement head drives drilling tool rotary
Turn；
Union interface comprising with the first union interface of the chamber in fluid communication and the second union interface, described first
Union interface and the second union interface are set to the top of the ontology, and the first union interface is closer described
Top cover, the first union interface can connect for slurry pipeline, and the second union interface can connect cementing pipeline；
Spiral backing pin, is arranged on the body, and be located at the first union interface and the second union interface it
Between, rubber plug can be stranded in the chamber by the spiral backing pin, and when carrying out rubber plug for slurry, the spiral backing pin discharges institute
State rubber plug downlink.
2. rotary cement head according to claim 1, which is characterized in that further include being set under the second union interface
The ball injector of side, the ball injector include propulsion tube and the pushing ram that is set on the outside of the propulsion tube, are set in the propulsion tube
It is equipped with the pitching hole with the chamber in fluid communication, for from pitching hole pitching into the propulsion tube, the pushing ram to be used
It is pushed into the chamber in the ball that will be contained in the propulsion tube.
3. rotary cement head according to claim 1 or 2, which is characterized in that the rotary cement head further includes in rotation
Set, the rotation inner sleeve is configured to tubulose, and the rotation inner sleeve bearing is connected to the lower end of the ontology.
4. rotary cement head according to claim 3, which is characterized in that the lower end of the rotation inner sleeve is connected with lower protection
Connector, to connect the drilling tool.
5. rotary cement head according to claim 3, which is characterized in that the rotary cement head further includes and the ontology
Lower end connection outer cylinder, the outer sleeve loaded on it is described rotation inner sleeve outer surface, and the rotation inner sleeve bearing company
It is connected to the outer cylinder.
6. rotary cement head according to claim 5, which is characterized in that be arranged between the rotation inner sleeve and the outer cylinder
There is rotatory sealing combination, to close the gap between the rotation inner sleeve and the outer cylinder.
7. rotary cement head according to claim 5 or 6, which is characterized in that axis of the rotation inner sleeve along the ontology
Line directional structure vectorical structure be it is substantially trapezoidal, the rotation inner sleeve includes the lesser downstairs portion in the biggish top bar portion in section and section,
The top bar portion of the rotation inner sleeve is connected to the lower end of the ontology by first bearing with by the rotation inner sleeve bearing
It is connected to the lower end of the ontology, the stepped down part of the rotation inner sleeve is connected to the outer cylinder by second bearing with by institute
It states rotation inner sleeve bearing and is connected to the outer cylinder.
8. rotary cement head according to claim 7, which is characterized in that it is provided with crook on the inner wall of the outer cylinder,
The second bearing is set in the crook.
9. a kind of cementing method, it is characterised in that: the following steps are included:
Step 1, rubber plug is installed: opening top cover, spiral backing pin is screwed in the chamber of rotary cement head ontology, is put into rubber plug, institute
It states spiral backing pin and is detained the rubber plug in the chamber, buckling top cover, and the top cover is connected to elevator；
Step 2, connection operation pipeline: it will be connected to the first union interface for slurry pipeline, cementing pipeline is connected to the second union
Interface；
Step 3, cementing: cement is injected into the ontology from the cementing pipeline；
Step 4, rubber plug is for slurry: the spiral backing pin is screwed out, the rubber plug is discharged, injects mud from described for slurry pipeline, it is described
Rubber plug downlink under the promotion of mud；
Wherein, elevator described in the cementing step makes the rotary cement head drive drilling tool rotation.
10. cementing method according to claim 9, which is characterized in that step 1 further includes that ball is put into throwing by pitching hole
In the propulsion tube of ball device, when needing pitching to build the pressure, the ball in the propulsion tube is pushed into the chamber by rotation pushing ram
In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319249.9A CN105317395B (en) | 2014-07-07 | 2014-07-07 | A kind of rotary cement head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319249.9A CN105317395B (en) | 2014-07-07 | 2014-07-07 | A kind of rotary cement head |
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| CN105317395A CN105317395A (en) | 2016-02-10 |
| CN105317395B true CN105317395B (en) | 2019-01-01 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971554B (en) * | 2016-07-22 | 2018-12-14 | 中国海洋石油总公司 | Rotate injection device |
| GB201703263D0 (en) | 2017-02-28 | 2017-04-12 | Sudelac Ltd | Head apparatus |
| CN106837239B (en) * | 2017-02-28 | 2023-01-13 | 中国海洋石油总公司 | Hydraulic pushing type rubber sealing cement head for rotary tail pipe well cementation |
| CN115949365B (en) * | 2023-03-14 | 2023-05-26 | 山东健源石油工程技术有限公司 | Pressure-bearing leakage-proof drill rod cement head and working method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4995457A (en) * | 1989-12-01 | 1991-02-26 | Halliburton Company | Lift-through head and swivel |
| CN201121503Y (en) * | 2007-11-12 | 2008-09-24 | 辽河石油勘探局 | Inversion type tail pipe rotary cementing head |
| CN201144665Y (en) * | 2007-12-16 | 2008-11-05 | 山东赛瓦石油工具服务有限公司 | High-pressure pipe joint union backing pin type cement head |
| US8327930B2 (en) * | 2009-09-24 | 2012-12-11 | Schlumberger Technology Corporation | Equipment for remote launching of cementing plugs |
| CN102953707A (en) * | 2012-11-13 | 2013-03-06 | 中国石油化工股份有限公司 | Top-drive drill rod well cementing head |
| CN202832353U (en) * | 2012-08-22 | 2013-03-27 | 沈阳白云机械有限公司 | Straight-buckle fast connection cement head device with large inner diameter |
| CN202914026U (en) * | 2012-11-22 | 2013-05-01 | 中国石油集团渤海钻探工程有限公司 | Well cementation cement head |
-
2014
- 2014-07-07 CN CN201410319249.9A patent/CN105317395B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4995457A (en) * | 1989-12-01 | 1991-02-26 | Halliburton Company | Lift-through head and swivel |
| CN201121503Y (en) * | 2007-11-12 | 2008-09-24 | 辽河石油勘探局 | Inversion type tail pipe rotary cementing head |
| CN201144665Y (en) * | 2007-12-16 | 2008-11-05 | 山东赛瓦石油工具服务有限公司 | High-pressure pipe joint union backing pin type cement head |
| US8327930B2 (en) * | 2009-09-24 | 2012-12-11 | Schlumberger Technology Corporation | Equipment for remote launching of cementing plugs |
| CN202832353U (en) * | 2012-08-22 | 2013-03-27 | 沈阳白云机械有限公司 | Straight-buckle fast connection cement head device with large inner diameter |
| CN102953707A (en) * | 2012-11-13 | 2013-03-06 | 中国石油化工股份有限公司 | Top-drive drill rod well cementing head |
| CN202914026U (en) * | 2012-11-22 | 2013-05-01 | 中国石油集团渤海钻探工程有限公司 | Well cementation cement head |
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| CN105317395A (en) | 2016-02-10 |
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Effective date of registration: 20210429 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: China Petroleum & Chemical Corp. Patentee after: SINOPEC Research Institute OF PETROLEUM ENGINEERING Patentee after: SHELFOIL PETROLEUM EQUIPMENT & SERVICES Co.,Ltd. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petroleum & Chemical Corp. Patentee before: SINOPEC Research Institute OF PETROLEUM ENGINEERING |